8320784

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{271}}^1$

素因数の和:399

約数の個数: 40

約数和(自身を含む): 17201280

約数和(自身を除く): 8880496

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 101, 152, 202, 271, 304, 404, 542, 808, 1084, 1616, 1919, 2168, 3838, 4336, 5149, 7676, 10298, 15352, 20596, 27371, 30704, 41192, 54742, 82384, 109484, 218968, 437936, 520049, 1040098, 2080196, 4160392, 8320784]

約数ペア:

[(1, 8320784), (2, 4160392), (4, 2080196), (8, 1040098), (16, 520049), (19, 437936), (38, 218968), (76, 109484), (101, 82384), (152, 54742), (202, 41192), (271, 30704), (304, 27371), (404, 20596), (542, 15352), (808, 10298), (1084, 7676), (1616, 5149), (1919, 4336), (2168, 3838)]